It appears to be conflating things that may or may not be real with other things that are being misreported in the news and making up sensational stories out of them.

Unclassified government networks are mostly connected to the internet. The government is mostly bad at cyber security. These are well known facts. Whether or not "DOGE" has any actual connection to this is not really in evidence at this point, this is a highly partisan person's attempt to influence other people to their point of view.